Shoring.



3. R. WEMLINGEE.

SHORING,

APPLICATION FILED SEPT. 23, 1907. RENEWED APR. 25, 1910.

Patented Nov. 15 1910.

Fig.4-

nverd'or: I

WiTneSSes:

- actiial use as shoring; Fig. 3 is a perspective.

- erases.

' held in place by wales or rangers extending of New York, have inventedcertain new easily and instantly guided to their properi pdsitn'iiis'and driven into the earth.

' Figure 1 is a transverse section of,one of slightly modified form;and, Fig. 4:- is a per- .use of wooden planks for the upright poreningdefects in places where they should give the said plank-s any strengthat all, it

mass. This has renders. dificiilt to 5 5 ron.

AEN -10 JULIUS R. WEMLING-ER,

on NEW 201m, in. Y.

snonme.

Specification of Letters Patent.

Patented Nov. 15, 191 0.

eppnesfios as September 23,1907, Serial No. 394,109. Renewed April 25,1910. Serial No. 557,593. v

Zhall whom it ma y. concern:

- Be-it known that I, JULIUs R. lVnMLIN- a citizen of the United States.residing at; ooklyn, in the city of New Yonk, State and usefulImprovements in Shoring, of which the following is a specification.

This .invention relates to shoring and especially to suchas is used forholding up the sides of ditches and-trenches.

The principal objects of my'invention are to 1gfirovide such' a shoringas will insure eat safety, byentirIy preventing the falling or caving inof the walls of an exaeration, and that will also have all the strengthand rigidity required for the pur ase, With'the least possible weight;that can e readily and quiekl" applied and removed, and the vertical's'e'c ons of which can be .My invention consists in the constructionhereni'deseribed and set forth.,

The accompanying drawing illustrates one embodiment of my invention, inwhich,

the vertical members or sheets of the shoring; Fig. 2 is a similar Viewof two adjacent members in the. position they'will assn'ine in relationto each other when in view of one of. said members, but of a spectiveview of a part of a trench and my, improved shoring applied thereto, andalso showing the method of'application;

Heretofore, in the digging of trenches'and ditches, the shoring ortemporary support for the Walls of these excavations has been made ofwooden planks, the planks being across the planks. the said Wales orrangers being in turn held in place by struts or braeesextending acrossthe trench or to some bearing within the excavation. The

tidns or the shoring cannot be relied v upon for strength, as they arenever of uniform strength, and they are'likely to have weak be thestrongest. Mereover, in order to is necessary to give them considerablethick drive down into-the earth, es ecially when it: i hard, and the actof, timing often;

thermdre, these planks can be .used only two or three times at best, andthey require so much bracing and the operation of driving them is soslow that the entire shoring operation by means of planks or boards isvery expensive. If any of the planks break during the process of drivingthem into the earth, it renders them useless for the purpose intended.

My invention overcomes all the above dif ficulties; it provides verticalmembers for shoring that have the greatest strength and least weight andthickness, that can be readily driven with little power into the earth,that can be properly guided While being driven, so as to attain. theirproper positions relatively to the trench'or excavation and theiradjacent sections, that can be used "over and over again, and that canbe readily removed as, soon as the retaining Wales or brasserie-removed.In the drawing, similar figures represent like parts. I

l is 'a vertical member 'or unit of my improved shoring, and, as shown,is provided Withlongitudinal projections and recesses 2 and 3,respectively. The particular form of the member or unit of my 35 shoringas shown in the drawing is that of "a corrugated or wavy sheet or plateof metal, this form being especially suitable for the purpose for'which'it is intended,

as giving'the greatest strength and stiff ness with the leastpracticable weight and thickness,-and also as being thin enough, orsharp enough, at its edge'or point to be readily driven into the earth,and also as providing a number of vertically extending ridges andrecesses that will register with corresponding recesses and ridges inthe adjacent member and thereby permit the proper guiding of the samewhile it is being driven and aftenthe shoring is in position.

In addition to the vertical sections or members 1, the shoring consistsof breastpieces, wales or rangers i eiztending longitudinally within thetrench and transversely across and bearing against the vertical thembers1, and struts or braces 5 with their ends bearing against the wales i soas to force tliefi'i against the members; 1: I

Fig. 1 illustrates my im roved shoring 110. as applied t6 tiiili, On Sia6f the trench and shoring being broken away to more clearly show theconstruction and application, it being understood that, in this case,

there is another line of vertical members their ends.

The mode of application is as The trench is dug a few feet, 6 being the.wall. of the trench and 7 its bottom. The

wales or rangers 4 are then extended longitudinally with the trenchbearing against the wall 6; then the struts or braces are appliedbetween the two opposite wales with their ends bearing against the saidwales. The members 1 are then driven between the wale and the adjacentwall down to the bottom 7 of the trench, the Wale 4 being a guide to thefront of members 1 during said operation. The said members 1 arepreferably driven one at a time, an edge or a longitudinal ridge of 1one member being made to engage with a corresponding bend or recess ofthe contiguous member, so that the two will overlap and keep theirproper positions relatively to each other.

In Fig. 4, it will be seen that six vertical members have been driven,as above stated, and for some distance below the bottom of the trench,and another member has been partly driven and is just about to be forcedinto the bottom of the trench. If vfor'any reason it be not desired todrive the members 1 into and below the bottom 7 of the trench, it may benecessary and expedient to have additional wales and struts at and nearthe bottom of the trench, to hold the lower portions of the members 1against the wall 6.

In Fig. 2, the registering portions of the two contiguous members 1 areshown as overlapping a little more than any of the two adjacent sectionsin Fig. 4. When the sections are made with alternate ridges and recessesof similar size and similar distances apart, it is obvious that the twocontiguous -S8CtlO11S or members 1 can be made to overpracticable and Amay be made by denting the section as at 8 in Fig. 3. before thesections 1 are driven.

, This usually provides a. waterand quicksand-tight joint between thesections; but, if any leakage occurs, it is readily stopped bytightening the bracing and thus increasing the pressure of the wales.Inasmuch as the shoring is flexible and of double thickness only attheoverlapping joints the pressure of the wales is received mainly bythe joints and a tight joint secured. This can follows not beaccomplished with ordinary shoring or with the tongued and groovedplanking frequently used.

After the trench or ditch has been dug down to the required depth andthe work to be done completed, the excavation is usuall refilled andtheshoring is no longer needs It is obvious that, as soon as the wales andstruts are removed, the sections -1 will fall apart and can be readilytaken out and be ready for-re-shoring.

While I have described my method of shoring-as applied to a trench, itis evident that it is applicable to any kind of excavation with slightmodifications. For instance, if the excavation is too large for thestruts 5 to extend horizontally across, the said struts 5 are arrangedto bear at one end against the wales 4 and at the other against theground of the excavation itself or some other object.

I prefer to use corrugated sheet metal for thevertical sections 1 forthe reasons above stated, and also for the reason that they can beobtained thus in an almost infinite-variety of widths andthicknesses,and because of the great facility of procuring such forms.

I am aware-that corrugated sheets and other stifi'ened plates have beenused for roofing and for sheet-piling, but such sheets were securedtogether by either nails or other fastening's. This construction is not'appropriateffor temporary shoring .of vertical walls of earth, as itwould beexceedingly difiicult, if not imp ossible,.to separate theplates if used as vertical ,sections after they have been so secured anddriven into the earth. Moreover, such constructionhas never been usedfor the purpose of this invention, and could not separate or drop apartand be readily removed in the-same manner asfmy improved shoring. I donot limit myself to the recise construction above described an shown, asmany changesmay be made therein without departing from the spirit of myinvention or sacrificing its chief advantages.

What I claim as new and desire to secure by Letters Patent, is: l

1. A wall shoring comprising a plurality of independent sheet metalsections, having curved adjacent edges, and with the edge of one sectionengaging, but not locking with, the curve of the adjacent section, aremovable bar or vwale extending transversely across said sections and astrut bearing against said bar or wale.

2. A wall .shoring comprising a plurality of independent corrugatedsections, and with a longitudinal ridge of one section engaging with acorresponding recess of an adjacente ex section, and a removable bar'orwa tending transversely across said sections.

3. A wall shoring-comprising a plurality of independent corrugatedsections, and with.

evaees against said-bar or wale. I 4. A metallic shoring comprlsingseries of. independent longitudinal corrugated plates adapted tosupporta' bank ofearth' or similar material with their adjacent edgeslaterally overlapping to the extent of at least a. part of onecorrugation, in combination Wlth waling pieces arranged against the freesurface of said piling, and supporting means abutting said 'walingpieces for holding same and the piling in 'position.

,5. A'wall shorin comprising a series of independent vertica lyarranged, corrugated plates, assembled with their adjacent edges inlateral contact and overlapping: the exposed surfaces ofsaid plateslasing supported y transverse waling pieces and struts, to formsubstantially water-tight joints and permit the ready disengagement ofsaid plates when-the supports are removed.

6. A wall shoring com rising a series of longitudinally coilfilgatemetal plates,each having means on one of its lateral edges for forcing adriven late into close contact with an adjacent p ate, and means forsupporting the exposed surface of said plates.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing Witnesses, this 21st day of September 1907.v

JULIUS R. XVEMLINGER.

" Witnesses;

EDITH J. FULLER, LEIBER HERMANN.-

